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Analog Devices Inc./Maxim Integrated MAX6143BASA10+
- Part No.:
- MAX6143BASA10+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6143BASA10+.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,914
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Product details
Overview
MAX6143BASA10+ from Maxim Integrated is a high-precision, low-noise voltage reference with integrated temperature sensor output. It delivers a factory-trimmed +10.0V reference (±0.10% initial accuracy), 10ppm/°C max temperature coefficient over –40°C to +125°C, and linear TEMP output (630mV at +25°C, 2.1mV/°C). It sources up to 30mA, operates from (VOUT + 2V) to +40V input, and supports precision A/D and D/A converter biasing in automotive and industrial data acquisition systems.
For engineers reviewing the MAX6143BASA10+ datasheet, MAX6143BASA10+ pinout, MAX6143BASA10+ application, or MAX6143BASA10+ equivalent, key selection criteria include its 10ppm/°C tempco, ±0.10% initial accuracy, TRIM-adjustable output, active-low SHDN (0.01µA shutdown current), and stable operation without output bypass capacitors - critical for space-constrained, high-resolution measurement designs.
Technical Context
The MAX6143BASA10+ uses bandgap-based architecture with proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve low drift and high DC accuracy. Its TEMP output provides a ratiometric voltage proportional to die temperature (2.1mV/°C), enabling on-chip thermal monitoring without external sensors.
It features an active-low SHDN input that reduces quiescent current to 0.01µA, and a TRIM terminal allowing ±6% output adjustment via external resistive divider. The device is internally compensated and remains stable with capacitive loads up to 100µF - eliminating mandatory output capacitance while maintaining transient immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +10.0V (nominal), ±0.10% initial accuracy at +25°C - ensures ≤1mV absolute error in 10-bit+ systems over full temp range |
| Tempco | 10ppm/°C max (–40°C to +125°C) - limits drift to ±1mV over full automotive temperature range |
| Noise (0.1–10Hz) | 18µVP-P - supports 16-bit+ ADCs without added filtering |
| Supply Current | 340µA typical, 700µA max (–40°C to +125°C) - enables low-power battery operation |
| Shutdown Current | 0.01µA typical - extends system standby life by orders of magnitude |
| TEMP Output | 630mV at +25°C, 2.1mV/°C slope - provides calibrated die temperature sensing with no calibration required |
| Load Drive | Sources 30mA / sinks 2mA - directly drives ADC reference inputs, op-amp buffers, and small logic loads |
Pinout & Package
The MAX6143BASA10+ is housed in an 8-pin SOIC (SO) package with standard .150" width, 1.27mm pitch, and JEDEC MS-012AC outline. Pins 1 and 8 are internally connected and must remain unconnected externally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 2) | Positive supply input | Accepts 12V to 40V input; requires ≥2V headroom above VOUT for regulation |
| TEMP (Pin 3) | Digital die temperature transducer output | Provides 630mV @ +25°C, 2.1mV/°C - used for self-monitoring or ambient compensation |
| GND (Pin 4) | Analog ground reference | Common return for IN, OUT, SHDN, TRIM, and TEMP; must be low-impedance |
| TRIM (Pin 5) | Output voltage adjustment node | Accepts resistive divider between OUT and GND; enables ±6% fine-tuning of 10.0V output |
| OUT (Pin 6) | Precision reference voltage output | Delivers stable +10.0V; stable with 0–100µF capacitive loads; no bypass capacitor required |
| SHDN (Pin 7) | Active-low shutdown control | Pull to GND to enter ultra-low-power mode (0.01µA); tie to IN for normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated temperature sensor | Linear TEMP output (630mV @ +25°C, 2.1mV/°C) eliminates need for external thermal ICs in system health monitoring |
| No output capacitor required | Internal compensation enables stability with 0–100µF load capacitance - saves PCB area and BOM cost |
| Trim-adjustable reference | TRIM pin supports ±6% output tuning via external resistor network - accommodates board-level calibration |
| Wide input voltage range | Operates from (VOUT + 2V) to +40V - simplifies power rail selection in 12V/24V industrial and automotive systems |
| Automotive-grade temperature range | Specified from –40°C to +125°C - qualified for under-hood and engine-control module applications |
Applications
| High-Resolution Data Acquisition | Automotive Engine Control Units |
|---|---|
Use Scenario: 16-bit SAR ADC in portable test equipment measuring sensor outputs with <1LSB error budget. IC Role / Device Role / Timing Role: Provides stable, low-noise 10.0V reference for ADC full-scale calibration and offset correction. Use Value: 10ppm/°C tempco and 18µVP-P noise ensure ≤0.5LSB drift over –20°C to +70°C operating range. | Use Scenario: Reference and thermal monitoring in ECU subsystem managing fuel injection timing and knock detection. IC Role / Device Role / Timing Role: Supplies precise 10.0V bias to analog front-end while feeding die temperature to microcontroller via TEMP pin. Use Value: Single-device dual function reduces component count; 125°C rating meets AEC-Q100 Grade 0 requirements. |
| Industrial PLC Analog Input Modules | Battery-Powered Precision Meters |
Use Scenario: 4–20mA loop-powered transmitter with local 10V reference for DAC-based current generation. IC Role / Device Role / Timing Role: Serves as isolated, high-accuracy reference source with TRIM-adjustable output for field calibration. Use Value: ±0.10% initial accuracy and 30mA sourcing capability enable direct drive of DAC reference pins without buffer amplifiers. | Use Scenario: Handheld multimeter requiring long battery life and stable 10V reference for autoranging voltage measurements. IC Role / Device Role / Timing Role: Delivers 10.0V reference while entering 0.01µA shutdown during display sleep cycles. Use Value: Ultra-low shutdown current extends coin-cell battery life to >5 years; no output cap reduces size and leakage risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT6655IMS10#PBF | Lower 3ppm/°C tempco, 0.05% initial accuracy, but only 10mA output drive and no TEMP output | Lacks integrated temperature sensing; requires separate thermal IC for die monitoring | Choose when ultimate reference stability is prioritized over multi-function integration |
| REF5010IDR | 10ppm/°C tempco, 0.1% initial accuracy, 10mA drive, no TEMP output, requires 1µF output capacitor | Needs external capacitor for stability; no on-die thermal sensing capability | Prefer when TI ecosystem compatibility or lower cost is critical and TEMP functionality is not needed |
Compared with LT6655IMS10#PBF and REF5010IDR, the MAX6143BASA10+ uniquely combines 10V precision reference, integrated die temperature sensing, 30mA drive, and capacitor-free stability - making it optimal for compact, multi-sensor industrial and automotive modules where board space and functional integration are constrained.
Availability
MAX6143BASA10+ is available at Aetrix Electronics and suitable for high-resolution data acquisition, automotive engine control units, and industrial PLC analog input modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6143BASA10+ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX6143 series was engineered specifically for high-accuracy, low-drift voltage referencing in harsh environments - integrating reference, trimming, shutdown, and temperature sensing into a single SOIC package for space- and reliability-critical systems.
FAQ
What is the guaranteed initial accuracy of the MAX6143BASA10+ at +25°C?
The MAX6143BASA10+ has a guaranteed initial accuracy of ±0.10% at +25°C, corresponding to ±10mV tolerance on its nominal +10.0V output. This specification is tested and guaranteed across 100% of production units per Maxim's datasheet (Rev 1, page 7, ELECTRICAL CHARACTERISTICS-MAX6143_10).
Does the MAX6143BASA10+ require an output bypass capacitor for stability?
No, the MAX6143BASA10+ does not require an output bypass capacitor for stability. It is internally compensated and remains stable with capacitive loads from 0 to 100µF. This eliminates board area and BOM cost associated with external capacitors - confirmed in the General Description and Applications Information sections of the MAX6143 datasheet.
How is the TEMP output of the MAX6143BASA10+ calibrated and what is its sensitivity?
The TEMP output of the MAX6143BASA10+ is factory-calibrated to 630mV at +25°C with a sensitivity of 2.1mV/°C across –40°C to +125°C. This linear relationship enables direct die temperature calculation without external calibration, as specified in the ELECTRICAL CHARACTERISTICS tables for VTEMP and TCTEMP.
What is the maximum load current the MAX6143BASA10+ can source and sink?
The MAX6143BASA10+ can source up to 30mA and sink up to 2mA of load current. These values are specified in the General Description and confirmed in the Load Regulation section of the datasheet, where sourcing performance is characterized up to 10mA (with derating beyond) and short-circuit protection limits output to 60mA (to GND) or 3mA (to IN).
Can the output voltage of the MAX6143BASA10+ be adjusted, and if so, how?
Yes, the output voltage of the MAX6143BASA10+ can be adjusted using the TRIM pin. A resistive divider between OUT and GND, with its wiper connected to TRIM, allows ±6% adjustment (±0.6V around 10.0V). The adjustment formula ∆VOUT = 2 × (VTRIM − VTRIM(open)) × k is provided in the Detailed Description section of the datasheet.
MAX6143BASA10+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 10V
- Voltage - Output (Max):
- -
- Current - Output:
- 30 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 10ppm/°C
- Noise - 0.1Hz to 10Hz:
- 18µVp-p
- Noise - 10Hz to 10kHz:
- 29µVrms
- Voltage - Input:
- 12V ~ 40V
- Current - Supply:
- 700µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6143BASA10+ FAQ
1.How can I place an order for MAX6143BASA10+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6143BASA10+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX6143BASA10+ reliable?
The price and inventory of MAX6143BASA10+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6143BASA10+ is usually 5 days.
3.What payment methods are accepted for MAX6143BASA10+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6143BASA10+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6143BASA10+?
MAX6143BASA10+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6143BASA10+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX6143BASA10+?
For technical support, including MAX6143BASA10+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6143BASA10+ requirements.
6.How does Aetrix verify that MAX6143BASA10+ is sourced from the original manufacturer or authorized distributors?
All MAX6143BASA10+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX6143BASA10+ meets industry standards.
7.What is the process for return or replacement of MAX6143BASA10+?
All MAX6143BASA10+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6143BASA10+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX6143BASA10+ part is unused and in its original packaging.
Return procedure for MAX6143BASA10+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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